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[PATCH 2/2] leds: lm3533: constify attribute_group structure

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  [PATCH 2/2] leds: lm3533: constify attribute_group structure Amitoj Kaur Chawla <amitoj1606@gmail.com> - 2017-08-10 18:30 +0200
    Re: [PATCH 2/2] leds: lm3533: constify attribute_group structure Pavel Machek <pavel@ucw.cz> - 2017-08-11 14:40 +0200

#1708820 — [PATCH 2/2] leds: lm3533: constify attribute_group structure

Functions working with attribute_groups provided by <linux/device.h>
work with const attribute_group. These attribute_group structures do not
change at runtime so mark them as const.

File size before:
 text      data     bss     dec     hex filename
 8272      4608      64   12944    3290 drivers/leds/leds-lm3533.o

File size after:
 text      data     bss     dec     hex filename
 8368      4512      64   12944    3290 drivers/leds/leds-lm3533.o

This change was made with the help of Coccinelle.

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
---
 drivers/leds/leds-lm3533.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/leds-lm3533.c b/drivers/leds/leds-lm3533.c
index 5b529dc..72224b5 100644
--- a/drivers/leds/leds-lm3533.c
+++ b/drivers/leds/leds-lm3533.c
@@ -626,7 +626,7 @@ static umode_t lm3533_led_attr_is_visible(struct kobject *kobj,
 	return mode;
 };
 
-static struct attribute_group lm3533_led_attribute_group = {
+static const struct attribute_group lm3533_led_attribute_group = {
 	.is_visible	= lm3533_led_attr_is_visible,
 	.attrs		= lm3533_led_attributes
 };
-- 
2.7.4

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#1709544

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On Thu 2017-08-10 12:28:09, Amitoj Kaur Chawla wrote:
> Functions working with attribute_groups provided by <linux/device.h>
> work with const attribute_group. These attribute_group structures do not
> change at runtime so mark them as const.
> 
> File size before:
>  text      data     bss     dec     hex filename
>  8272      4608      64   12944    3290 drivers/leds/leds-lm3533.o
> 
> File size after:
>  text      data     bss     dec     hex filename
>  8368      4512      64   12944    3290 drivers/leds/leds-lm3533.o
> 
> This change was made with the help of Coccinelle.
> 
> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>

patches 1,2:

Acked-by: Pavel Machek <pavel@ucw.cz>

								Pavel

> -static struct attribute_group lm3533_led_attribute_group = {
> +static const struct attribute_group lm3533_led_attribute_group = {
>  	.is_visible	= lm3533_led_attr_is_visible,
>  	.attrs		= lm3533_led_attributes
>  };

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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